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/*
Copyright (C) 2004-2009 Fons Adriaensen <fons@kokkinizita.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __VIRTMIC_H
#define __VIRTMIC_H
#include <math.h>
class Virtmic
{
public:
Virtmic (void);
~Virtmic (void);
void process (int n, float *W, float *X, float *Y, float *Z, float *L, float *R);
void set_azim (float v) { _azim1 = -v / 360.0f; }
void set_elev (float v) { _elev1 = v / 360.0f; }
void set_angle (float v) { _angle1 = v / 720.0f; }
void set_direc (float v) { _direc1 = v; }
private:
int lincheck (float& v, float& v1)
{
float d;
d = v1 - v;
if (fabsf (d) < 1e-3f) return 0;
else if (d > 0.05f) v += 0.05f;
else if (d < -0.05f) v -= 0.05f;
else v = v1;
return 1;
}
int circheck (float& v, float& v1)
{
float d;
d = v1 - v;
d -= floorf (d + 0.5f);
if (fabsf (d) < 1e-3f) return 0;
else if (d > 0.02f) v += 0.02f;
else if (d < -0.02f) v -= 0.02f;
else v = v1;
v -= floorf (v);
return 1;
}
float diff (int n, float v, float v1)
{
float d;
d = (v1 - v) / n;
return (fabsf (d) < 1e-9f) ? 0 : d;
}
float _azim; // current azimuth
float _azim1; // target azimuth
float _elev; // current elevation
float _elev1; // target elevation
float _angle; // current mic angle
float _angle1; // target mic angle
float _direc; // current mic pattern
float _direc1; // target mic pattern
float _csw; // matrix elements
float _csx;
float _csy;
float _csz;
float _cdx;
float _cdy;
};
#endif
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